Hose coupling



Sept. 7, 1937. F. E. HANSEN 09mm HOSE COUPLING Filed Nov. 7, 1935 /L-/G6 a A INVENTOR.

/CED E HA/vsf/v ATTORNEYS Patented Sept. 7, 1937 UNITED STATES PATENTOFFICE HOSE COUPLING Fred E. Hansen, Lakewood, Ohio ApplicationNovember` A1, 1935, Serial No. 48,711 s claims. (c1. 284-19) Thisinvention relates to couplings for hose, pipes, and other articlesrequiring a coupling that is adapted for quick connection anddisengagement.

It is one of the objects of the invention to pro- Vide a coupling, ofthe type referred to, comprising male and female members adapted to besecurely coupled by merely forcing them together.

A further object of the invention is to provide a coupling of this typethat may be readily and conveniently uncoupled.

A further object of the invention is to provide a coupling of the typereferred to that will be so constructed that there is the minimumliability of the parts becoming accidentally uncoupled.

Other objects of the invention and the features of novelty will beapparent from the following description taken in connection with theaccompanying drawing in which two preferred embodiments of my inventionare illustrated. In

the drawing,

Fig. 1 is a composite View of the female member of a coupling, certainparts being shown in elevation and other parts in longitudinal section;

Fig. 2 is an elevation of the male member of the coupling in position tobe connected to the female member;

Fig. 3 is a longitudinal section of the coupling as illustrated in Figs.1 and 2 with the parts in partially coupled relation, the section beingon the line 3 3 0f Fig. 5;

Fig. 4 is a View similar to Fig. 3 but showing the parts in the fullycoupled relation;

Fig. 5 is a transverse section on the line 5 5 of Fig. 1; and

Fig. 6 is a longitudinal section of another embodiment of my inventiion,this view being substantially similar to Fig. 4 but having certain partsshown in elevation.

Referring to the form-of the invention illustrated in Figs. 1 to 5, I0indicates the female member of the coupling which is provided with abore II and a plurality of recesses I2, of which there are preferablythree, inclined to the axis of the coupling and communicating with thebore II. Arranged in each of the recesses I2 is a cylindrical lockingmember or pin I3 which is adapted to engage with the beveled shoulder I4on the male member I5 for the purpose of maintaining the parts incoupledv relation, as shown in Fig. 4.

The female member I8 is provided with an internal shoulder I6 againstwhich there is clamped, in sealing engagement, a gasket Il,

preferably of rubber, the gasket being secured in position by thefitting I8. A valve I9 has a tubular extension 20 projecting through thecentral hole 2| in the gasket I1, and a ange 22 adapted to make sealingengagement with one side of the 5 gasket. A spring 23 is arrangedbetween the wall 24 and the ange 22 in the fitting I 8 so as to forcethe valve against the gasket Il and thus prevent leakage of a pressurefluid past the valve. The extension 20 is provided with transverse ports25, 10 and when the valve is in its open position, as shown in Fig. 4,the pressure fluid may ow through these ports. 'I'he end 26 of the malemember I5 is adapted to engage with the valve extension 20 to force thevalve to its open position 15 when the male member I5 is moved intocoupling relation with the female member, as shown in Fig. 4.

Slidably arranged on the exterior of the female member I0 there is anouter sleeve 21 which carries an inner sleeve 28, the latter having aflange 29 which ts into the outer end of the sleeve 2l and is securedtherein by spinning the metal of the outer sleeve down over the flange,as shown at 30. A spring 3| is arranged between the ange 25 29 and theshoulder 32 on the exterior of the female member and tends to move thesleeves 2l and 28 outwardly, as will be readily understood from thedrawing.

The outer sleeve 2'I has a beveled internal 30 shoulder 33 which isadapted to engage with the tapered outer ends of the locking pins I3, asshown in Figs. 1 and 4, to hold these pins in their inner position andin engagement with the shoulder I4. The inner end of the sleeve 28 is 35beveled, as indicated at 34, and is adapted to engage with the innerends of the pins I3 as shown in the drawing and thus acts as a retainerto hold the pins in their recesses I2 when the male and female membersare separated as shown in 40 Fig. 1. The shoulder 33 normally engages acomplementary shoulder on the exterior of the female member I0, as shownin Fig. 1, to limit the outward movement of the sleeves 21 and 28 underthe influence of the spring 3|, so that the beveled 45 end 34 of theinner sleeve 28 will in all its positions underlie the pins I3. The malemember I5 has a beveled circumferential shoulder 35which is adapted toengage with the inner ends of the pins I3 when the male member is forcedinto the fe- 50 male member of the coupling, thereby moving the pins I3outwardly to the position shown in Fig. 3. The outward movement of thepins I3 moves the sleeves 2l and 28 to the left, in the drawing, againstthe tension of the spring 3|, so that when 56 ver the uns II reach thegroove on the male member. the A:spring ll will cause the sleeves 21 and2i to be moved toward the right. thereby forcing the pins inwardly intoengagement with the circumferential shoulder I4, as shown in Fig. 4. Theangle of the shoulder I4 is such that the axial pressure on the malemember tending to uncouple the male and female members will impose aside thrust on the pins I3 that is normal to the axes and thereforethere will be no tendency to move the pins outwardly. i

When it is desired to uncouple the male and female members, the operatorholds the sleeve 21 in one hand and the male member I5 or the part towhich it is attached in the other hand, and by a pulling movement theinner sleeve 29 will be moved into the position shown in Fig. 2`

and thusA force the pins I3 out of engagement with the shoulder I4 andpermit the male member to be withdrawn from `the female member. Whenthis occurs, the valve I9 will be automatically closed by the spring 23and thus stop the flow of pressure fluid.

In the form of -the invention illustrated in Fig. 6, the female member40 has a bore 4I to receive the male member 42 and the latterhas acircumferential groove 43 'so shaped as to form the beveledcircumferential shoulder 44. The female member 40 is provided with aplurality of recesses 45- which are inclined to the axis of the couplingand communicate with the bore -4I but, preferably, do not extend throughthe outer surface of the female member 40. In other words, the outerends of the recesses 45 are closed.' by

a. wall which is indicated at 46. In each of the recesses 45 there is a.cylindrical locking member or pin 41 which is cupped out to receive acompression .spring 48. As will be obvious from Fig. 6, the springs 48tend to force the pins 41 inwardly, and when the male and female membersare in coupled relation, the springs 49 hold the pins 41 in engagementwith the shoulder 44. An outer sleeve 49 is slidably arranged on thefemale member 4U and carries an inner sleeve 59, the latter having aflange' 5I which is secured to the sleeve 49 by spinning over the metalas shown at 52. The inner end of the inner sleeve 50 is` beveled asindicated at 53, and cooperating shoulders 54 on theexterior of themember 40 and the interior ofthe sleeve 49 limit the movement of thesleeves 49 and `5I) toward vthe right so that the sleeve 50 will alwaysunderlie the pins 41 and retain them in the recesses 45.

The male member 42 has a beveled circumferential shoulder 55 which isadapted to engage the inner ends of the pins 41 and force them outwardlywhen the male member is moved into coupling relation with the femalemember.

. When it is desired to uncouple the members, the operator holds theouter sleeve 49 in one hand and the male member 42 in the otherA and bya .pulling movement causes the inner sleeve 50 to force the pins 41outwardlyl so as to disengage them from the shoulder 44 and permit themale member desired to couple the male and female members, the former isinserted into the bore 4I and the engagement of the beveled shoulder 55with the inner ends of the pins 41 will cause the latter to be forcedoutwardly and permit the male member to move to the position shown inFig. 6 when,

the springs 48 will force the pins 41 inwardly into engagement with theshoulder 44 and thus retain the male and female members in coupledrelation.

42 to be withdrawn. When it is In the Fig. 6 constructio the valve forstopping the flow of the pressure fluid when the vmale and femalemembers are disconnected may be the same as that previously described.

While I have illustrated and described what I now consider the preferredembodiments of my invention. and, while, because of its relatively lowcost and convenience of operation, I prefer the Fig. 6 construction, itwill be understood that various changes may be made in the details ofthe constructions which have been illustrated and described Withoutdeparting from the spirit of the invention as defined in the appendedclaims.

Having thus described my invention, I claim:

l. In a coupling of the class described, the cornbination of a malemember having a circumferential shoulder, a female member having a bore,

to receive said male member, and a plurality of' recesses communicatingwith said bore, locking members iny said recesses and engageable withsaid shoulder to lock said male and female members in coupled relation,a sleeve slidable on said female member and carrying means projectinginto the interior of said female member to engagesaid locking membersand move them out of engagement with said shoulder and thereby permitthe uncoupling of said male and female members, and spring meanscooperating with said female member and said sleeve to move the latterto a position to retain said locking members in engagement with saidshoulder.

2. In a coupling of the class described, the combination of a malemember having a circumferential shoulder, a female member having a bore,to receive said male member, and a plurality of cylindrical recessescommunicating with said bore, the axes of said recesses being inclinedwith respect to the axis of said bore, cylindrical locking members insaid recesses and engageable with said shoulder to lock said male andfemale members in coupled relation, a sleeve slidable axially of saidcoupling and projecting into the interior of said female member toengage said locking members and move them out of engagement with saidshoulder and thereby permit the uncoupling of said male and femalemembers, and a separate coil spring in each of said recesses andcooperating with one of said locking members to move the same intoengagement with said shoulder.

3. In a coupling of the class described, the combination of a malemember having a beveled circumferential shoulder, a female member havinga bore, to receive said male member, and a plurality of cylindricalrecesses which are inclined with respect to the axis of the coupling,substantially cylindrical locking members in said recesses handengageable with said shoulder to lock said male and female members incoupled relation, a sleeve slidable in an annular space between saidmalev and female members with its inner end adapted to engage saidlocking members and move them outwardly in said recesses and out ofengagement with said shoulder to permit the uncoupling of said male andfemale members, and spring means acting to yieldingly hold said lockingmembers in their locking position in said e recesses.

4. In a coupling of the class described, the combination of a malemember having a beveled ciroumferential shoulder, a female member havinga bore, to receive said male member, and a plurality of cylindricalrecesses which are inclined-with respect to the axisv of the coupling,hollow substantially cylindrical locking members in said recesses andengageable with said shoulder to lock said male and female members incoupled relation, a sleeve slidable in an annular space between saidmale and female members with its inner end adapted to engage saidlocking members and move them outwardly in said recesses and out ofengagement with said shoulder to permit the uncoupling of said male andfemale members, and springs arranged in said recesses and extending intosaid locking members to yieldingly hold said locking members in theirlocking position in said recesses.`

5. In a coupling of the class described, the combination of a malemember having a beveled circumferential shoulder, a female member havinga bore, to receive said male member, and a plurality of recesses whichare inclined with respect to the axis of the coupling, substantiallycylindrical locking members in said recesses and engageable with saidshoulder to lock said male and female members in coupled relation, asleeve slidable in an annular space between said male and femaleVmembers with its'inner end adapted 1 to engage said locking members andmove them outwardly in said recesses and out of engagement with saidshoulder to permit the uncoupling of said male and female members,springs in said recesses acting to yieldingly hold said locking membersin their locking position in said recesses, and said sleeve engaging andretaining said locking members 'in said recesses when said male memberis removed from said female member.

6. A coupling of the class described, comprising the combination of amale member having a circumferentialshoulder, a female member having abore, to receive said male member, and a plurality of recessescommunicating with said bore, locking members in said recesses andengageable with said shoulder to lock said male and female members incoupled relation, an outer sleeve slidable on the exterior of saidfemale member and carrying an innersleeve which projects into the borein said female member so as to engage the inner ends of said lockingmembers, said outer sleeve and the exterior of-said female member havingcooperating means for limiting the axial movement of thesleeves so thatthe inner sleeve will underlie said locking members in all of itspositions and retain them in said recesses, said inner sleeve beingadapted to force said locking membersoutwardly and disengage them fromsaid shoulder by a movement into said bore, said male member havingmeans for engaging said locking members and moving them outwardly whenthe male member is forced into the female member incoupiing themtogether, and said outer sleeve having means to engage the outer ends ofsaid locking members to retain the locking members in engagement withsaid shoulder.

FRED E. HANSEN.

